Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

What do you mean by cori cycling, What do you mean by Cori Cycling? In ...

What do you mean by Cori Cycling? In this cycle, glucose released by peripheral tissues is metabolized to lactate, which is then resynthesized to glucose in the liver. This pro

What is the function of keratin in the epidermis, What is the function of k...

What is the function of keratin in the epidermis? The epidermis is the outer layer of the skin made of epithelial tissue. In the epidermis there are keratin-secreting cells (ke

History of Microbiology, Can you explain about microbiology? http://www.e...

Can you explain about microbiology? http://www.expertsmind.com/sample-assignment/sample-biology-homework.pdf

Molybdenum and vanadium, Molybdenum and Vanadium - Inorganic Nitrogen and S...

Molybdenum and Vanadium - Inorganic Nitrogen and Sulphur Metabolism Molybdenum must be available in nature in order to meet the demand of Mo for the formation of nitrogenase n

What is coronary bypass graft, Q. What is coronary bypass graft? The Co...

Q. What is coronary bypass graft? The Coronary artery bypass graft is a kind of surgical myocardial revascularization that is a way to provide blood to a myocardium whose blood

What would be the probability of obtaining result, A plant grown from one o...

A plant grown from one of Mendel's yellow peas is selfed. Five progeny peas are obtained from this self and they are all yellow. If the original selfed plant had been homozygous, w

Genetics, What does skin color in man shows?

What does skin color in man shows?

Tumours of kidney - wilm''s tomour, Tumours of kidney - Wilm's Tomour ...

Tumours of kidney - Wilm's Tomour So  far you have learnt about the disorders in glomerular dysfunctioning, now you will learn about the tumours in kidney the wilm's  tumour.

Commensalism, #quesWhat benefits can commensalism offer to a species..

#quesWhat benefits can commensalism offer to a species..

What is the menstrual cycle, What is the menstrual cycle? The menstrual...

What is the menstrual cycle? The menstrual cycle is the periodic succession of interactions among hormones and the organs of the female reproductive system that, after the star

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd